Browsing Faculté de médecine vétérinaire by Author "Harel, Josée"
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Development and use of a multiplex real-time quantitative polymerase chain reaction assay for detection and differentiation of Porcine circovirus-2 genotypes 2a and 2b in an epidemiological survey
Gagnon, Carl A.; Del Castillo, Jérôme; Music, Nedzad; Fontaine, Guy; Harel, Josée; Tremblay, Donald (2008-09)By the end of 2004, the Canadian swine population had experienced a severe 2 increase in the incidence of Porcine circovirus-associated disease (PCVAD), a problem that was 3 associated with the emergence of a new Porcine circovirus-2 genotype (PCV-2b), ... -
Emergence of a New Swine H3N2 and Pandemic (H1N1) 2009 Influenza A Virus Reassortant in Two Canadian Animal Populations, Mink and Swine
Tremblay, Donald; Allard, Véronique; Doyon, Jean-François; Bellehumeur, Christian; Spearman, Grant; Harel, Josée; Gagnon, Carl A. (2011-12)A swine H3N2 (swH3N2) and pandemic (H1N1) 2009 (pH1N1) influenza A virus reassortant (swH3N2/ pH1N1) was detected in Canadian swine at the end of 2010. Simultaneously, a similar virus was also detected in Canadian mink based on partial viral genome ... -
Emergence of a new type of porcine circovirus (PCV) in swine: a type 1 and type 2 PCV recombinant
Gagnon, Carl A.; Music, Nedzad; Fontaine, Guy; Tremblay, Donald; Harel, Josée (2010-07)In late September 2008, tissue samples from piglets experiencing an acute outbreak of porcine reproductive and respiratory syndrome (PRRS) were submitted to the Veterinary diagnostic service of the University of Montreal. Several diagnostic assays were ... -
Epidemiological study of Coxiella burnetii in dairy cattle and small ruminants in Québec, Canada
Turcotte, Marie-Ève; Buczinski, Sébastien; Leboeuf, Anne; Harel, Josée; Bélanger, Denise; Tremblay, Donald; Gagnon, Carl A.; Arsenault, Julie (Elsevier, 2021-04-25)The bacterium Coxiella burnetii (C. burnetii) can infect a wide range of animals, most notably ruminants where it causes mainly asymptomatic infections and, when clinical, it is associated with reproductive disorders such as abortion. It is also the ... -
Prevalence of Coxiella burnetii seropositivity and shedding in farm, pet and feral cats and associated risk factors in farm cats in Quebec, Canada
Cyr, J.; Turcotte, Marie-Ève; Desrosiers, A.; Bélanger, Denise; Harel, Josée; Tremblay, Donald; Leboeuf, Anne; Gagnon, Carl A.; Côté, J.-C.; Arsenault, Julie (Cambridge University Press, 2021-02-02)Cats represent a potential source of Coxiella burnetii, the aetiological agent of Q fever in humans. The prevalence and risk factors of C. burnetii infection in farm, pet and feral cats were studied in Quebec, Canada, using a cross-sectional study. ... -
Prevalence of shedding and antibody to Coxiella burnetii in post-partum dairy cows and its association with reproductive tract diseases and performance : a pilot study
Turcotte, Marie-Ève; Denis-Robichaud, José; Dubuc, Jocelyn; Harel, Josée; Tremblay, Donald; Gagnon, Carl A.; Arsenault, Julie (Elsevier, 2020-12-10)The bacterium Coxiella burnetii has been associated with reproduction disorders in dairy cattle. A cross-sectional study was conducted in Québec, Canada, to estimate the prevalence of C. burnetii in dairy cows from C. burnetii RT-PCR-positive and/or ... -
Propidium monoazide (PMA) and ethidium bromide monoazide(EMA) improve DNA array and high-throughput sequencing ofporcine reproductive and respiratory syndrome virus identification
Bellehumeur, Christian; Boyle, Brian; Charette, Steve J.; Harel, Josée; L'Homme, Yvan; Masson, Luke; Gagnon, Carl A. (2015-09-15)Pan-viral DNA array (PVDA) and high-throughput sequencing (HTS) are useful tools to identify novel viruses of emerging diseases. However, both techniques have difficulties to identify viruses in clinical samples because of the host genomic nucleic acid ...